package com.yixing.demo.config;

import com.yixing.demo.component.WebSocketClass;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.config.annotation.EnableWebSocket;
import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;

import javax.annotation.Resource;

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

    @Resource
    private WebSocketClass webSocketClass;

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        // 通过这个方法, 把刚才创建好的 Handler 类给注册到具体的 路径上.
        // 此时当浏览器, websocket 的请求路径是 "/test" 的时候, 就会调用到 TestWebSocketAPI 这个类里的方法.
        // registry.addHandler(testWebSocketAPI, "/test");
        registry.addHandler(webSocketClass, "/WebSocketMessage")
                // 通过注册这个特定的 HttpSession 拦截器, 就可以把用户给 HttpSession 中添加的 Attribute 键值对
                // 往我们的 WebSocketSession 里也添加一份.
                .addInterceptors(new HttpSessionHandshakeInterceptor());
    }
}
